Related Clues:

• Wicked
• Def, to a slangster
• First Nobelist in Physics
• It's equal to 100 ergs per gram
• 'Far out!'
• 'Cool!'
• Cool
• 'Far out'
• See 31-Down
• Corporate department
• 'Wild!' to a dude
• Physics unit
• 'Awesome!'
• Cool, once
• Radiation unit